package main

type Node struct {
	val  int
	name string
}

type BinaryTree struct {
	root Node
}

//前序遍历
func (bt *BinaryTree) preErgodic() {

}

//中序遍历
func (bt *BinaryTree) midErgodic() {

}

//后序遍历
func (bt *BinaryTree) afterErgodic() {

}

func main() {

}
